a/f ratio wrong help!!!
 

well heres the deal....

My lap top took a shit and i lost all my tuning stuff with it :bang: . My car has beed throwing MIL lights on and off and it's been locked in at 14.7:1 air fuel wide open, cruising, everywhere...

So i had my buddy at chevy scan it with a Tech 2. pulled up codes for both frt O2 sensors. we cleared the codes and i put 2 new delco sensors in it.

Now it runs fine(always did). air/fuel is a lil differednt all over the tune. But its running at 15:1 or so wide open as opposed to 11.2:1 like i have it tuned for. I have no changed the tune at all since like january when my lap top crapped out.

Anyone got any ideas? I'm baffled :confused: .

anyone....?

If your that lean are you sure your fuel pressure is still good?

It sounds like you need to get a new copy of your tuning software and check everything out.